Question

select the correct answer.
which of the following elements produces no harmful emissions when used as an energy source?

a. coal

b. oil

c. wind

d. natural gas

Explanation:

Coal (A), oil (B), and natural gas (D) are fossil fuels. When burned, they release harmful emissions like carbon dioxide, sulfur oxides, or nitrogen oxides. Wind (C) is a renewable energy source that generates energy through wind turbines, producing no harmful emissions during energy production.

Answer:

C. wind